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Extension of the quantal Brownian motion model to bosonic reservoirs

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  • Despósito, M.A.
  • Hernández, E.S.

Abstract

We formulate an extension of the Quantal Brownian Motion (QBM) model for collective mode damping designed to include coupling to other normal modes of the system. We derive the equations of motion of the macroscopic coordinates and of the fermionic and bosonic degrees of freedom and investigate their exact solution in the thermodynamic limit of the heat reservoir. We examine the properties of the microscopic transition rates and their dependence on the macroscopic parameters as well as on the coupling strengths. The characteristic times of the damping process are extracted and their trend is analyzed.

Suggested Citation

  • Despósito, M.A. & Hernández, E.S., 1988. "Extension of the quantal Brownian motion model to bosonic reservoirs," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 148(1), pages 267-287.
  • Handle: RePEc:eee:phsmap:v:148:y:1988:i:1:p:267-287
    DOI: 10.1016/0378-4371(88)90146-X
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    1. Cataldo, Everett F., 1987. "American Politics - Public Opinion and Collective Action: The Boston School Desegregation Conflict. By D. Garth Taylor (Chicago: University of Chicago Press, 1986. xiii, 241. $29.00)," American Political Science Review, Cambridge University Press, vol. 81(4), pages 1379-1380, December.
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